1、Designation: C 1047 05Standard Specification forAccessories for Gypsum Wallboard and Gypsum VeneerBase1This standard is issued under the fixed designation C 1047; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers accessories used
3、in conjunc-tion with assemblies of gypsum wallboard and gypsum veneerbase to protect edges and corners and to provide architecturalfeatures (see Fig. 1).1.2 The values stated in inch-pound units are to be regardedas the standard. The SI units in parentheses are provided forinformation purposes only.
4、 The SI equivalents of inch-poundunits may be approximate.2. Referenced Documents2.1 ASTM Standards:2A 463/A 463M Specification for Steel Sheet, Aluminum-Coated, by the Hot-Dip ProcessA 591/A 591M Specification for Steel Sheet, ElectrolyticZinc-Coated, for Light Coating Mass ApplicationsA 653/A 653M
5、 Specification for Steel Sheet, Zinc-Coated(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)by the Hot-Dip ProcessB69 Specification for Rolled ZincB117 Practice for Operating Salt Spray (Fog) ApparatusC11 Terminology Relating to Gypsum and Related Build-ing Materials and SystemsC 475/C 475M Spec
6、ification for Joint Compound and JointTape for Finishing Gypsum BoardC 587 Specification for Gypsum Veneer PlasterD 1788 Specification for Rigid Acrylonitrile-Butadiene-Styrene (ABS) Plastics3D 2092 Guide for Preparation of Zinc-Coated (Galvanized)Steel Surfaces for PaintingD 3678 Specification for
7、Rigid Poly(Vinyl Chloride) (PVC)Interior Profile Extrusions3. Terminology3.1 Definitions:3.1.1 Definitions shall be in accordance with TerminologyC11.3.2 Definitions of Terms Specific to This Standard:3.2.1 accessories, ncornerbeads, edge trims, and controljoints, such as casing beads, bull noses, a
8、nd stops.3.2.2 control joint, na formed product used for designedor required separations between adjacent surfaces of gypsumboards or gypsum veneer base.3.2.3 cornerbead, na formed metal, plastic, or metal andpaper angle for outside corners of gypsum boards or gypsumveneer base.3.2.4 edge trim, ntyp
9、ically “J”- or “L”-shaped strip, asshown in Fig. 1, formed of metal, plastic, or metal and paper tocover exposed ends or edges of gypsum board or gypsumveneer base.3.2.5 flange, nthat portion of the accessory used for theattachment to gypsum wallboard, gypsum veneer base, or aframing member.4. Mater
10、ials and Manufacture4.1 Steel accessories and steel components of accessoriesmanufactured from steel and paper in combination shall bemanufactured from zinc-coated cold-roll (coil or cut length)sheet steel not less than 0.012-in. (0.30-mm) thick beforeapplication of coating.4.1.1 Sheet steel, zinc-c
11、oated by the hot-dip process, shallbe in accordance with SpecificationA 653/A 653M, minimizedspangle, minimum G-30 coating.4.1.2 Sheet steel, zinc-coated by the electrolytic processshall be in accordance with Specification A 591/A 591M,minimum coating on surface side to be 0.000140 in. (0.00356mm),
12、minimum coating on reverse side to be 0.00010 in.(0.00254 mm).4.1.3 Sheet steel, aluminum-coated, shall be in accordancewith Specification A 463/A 463M minimum T1-40 coating.1This specification is under the jurisdiction of ASTM Committee C11 onGypsum and Related Building Materials and Systems and is
13、 the direct responsibilityof Subcommittee C11.02 on Specifications and Test Methods for Accessories andRelated Products.Current edition approved May 1, 2005. Published May 2005. Originallyapproved in 1992. Last previous edition approved in 2004 as C 1047 04.2For referenced ASTM standards, visit the
14、ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Internatio
15、nal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.4 Phosphatizing (as specified in Method A of GuideD 2092) or other surface treatments may be used to ensurecompatibility and bond as specified in Section 5.4.2 Zinc accessories shall be manufactured from rol
16、led zincin accordance with Specification B69, Type I, not less than0.012-in. (0.305-mm) thick.4.3 Plastic for accessories shall be manufactured from rigidPVC or ABS plastic not less than 0.012 in. (0.305 mm).4.3.1 PVC, Specification D 3678, Class II or III.4.3.2 ABS, Specification D 1788 81, all lim
17、its 5-3-3-1-1.4.4 Paper components of accessories manufactured fromsteel and paper in combination shall comply with requirementsfor thickness, tensile strength, dimensional stability, and bondof joint tape to joint compound as specified in SpecificationC 475/C 475M.5. Physical Properties5.1 Compatib
18、ility and BondAccessories shall be compat-ible with and provide a surface bond to the materials specifiedin Specifications C 475/C 475M and C 587.5.2 Test PerformanceSteel accessories and steel compo-nents of accessories shall not show any red oxidation whentested as specified in Practice B117for 19
19、2 h.6. Dimensions and Permissible Variations6.1 Cornerbeads shall have an interior angle between theflanges no greater than 89.6.2 Accessories shall be free of twist or camber of a degreethat will prevent their use in the assembly for which they areintended.6.3 Length tolerances shall be 6316 in. (6
20、4.8 mm).6.4 The size of the edge trim shall suit the thickness of thegypsum board used.6.5 The minimum width of the flange shall be78 6132 in.(22 6 0.8 mm).7. Appearance7.1 Edges of accessories shall be free of burrs and sharpedges.8. Configuration8.1 Flanges of accessories, when required to be atta
21、ched toframing members, shall have punch outs to accommodatefastening to the framing members. When required to meetperformance requirements, the flanges shall be either knurled,made of mesh, deformed, expanded, or otherwise shaped tomeet the performance requirements and intended use. Fig. 1depicts t
22、he most commonly used shapes.NOTE 1Other types of accessories designed for special finish appli-cation (bull-nose, cove, and so forth) shall be manufactured in accordancewith the general requirements of this specification.9. Sampling9.1 At least 0.25 % of the number of each type of accessoryin a shi
23、pment, but not less than three pieces, shall be selectedFIG. 1 Accessories for Gypsum Wallboard and Gypsum Veneer BaseC 1047 052to represent the shipment and shall constitute a sample for thepurpose of tests by the purchaser or user.10. Inspection10.1 Inspection of the accessories shall be agreed up
24、onbetween the purchaser and the supplier as part of the purchaseorder.11. Rejection and Rehearing11.1 Rejection of accessories that fail to conform to therequirements of this specification shall be reported to theproducer or supplier promptly and in writing within 10working days from receipt of ship
25、ment by the purchaser. Thenotice of rejection shall contain a specific statement of therespect in which the accessories have failed to conform to therequirements of this specification. In case of dissatisfactionwith the results of the test, at the request of the producer orsupplier, such notice of r
26、ejection shall be supported by resultsof a test conducted by a mutually agreeable independentlaboratory.12. Certification12.1 When specified in the purchase order, a producers orsuppliers certification that the product meets the requirementsof this specification shall be furnished to the purchaser.1
27、3. Packaging and Package Marking13.1 Accessories shall be packaged to ensure safe deliveryby common or other carriers.13.2 When shipped for resale, the name of the manufactureror seller and the brand and contents shall be legibly marked oneach package.14. Keywords14.1 accessories; bead; corner; corn
28、erbead; edgeSUMMARY OF CHANGESCommittee C11 has identified the location of selected changes to this specification since the last issue,C 1047 04, that may impact the use of this specification. (Approved May 1, 2005)(1) Revised 3.2.5.Committee C11 has identified the location of selected changes to th
29、is specification since the last issue,C 1047 99(2004), that may impact the use of this specification. (Approved December 1, 2004)(1) Revised Section 3 to add Terminology C11and to relocatethe definition of flange to paragraph 3.2.5.(2) Added Terminology C11to Referenced Documents.ASTM International
30、takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own
31、 responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be add
32、ressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at
33、 the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C 1047 053
